[Chrillzen]

Let's say I make something like this at OnPlayerEnterVehicle.

pawn Код:

if(IsACopVehicle(vehicleid))
    {
        new Float:playerposx, Float:playerposy, Float:playerposz;
        GetPlayerPos(playerid, playerposx, playerposy, playerposz);
        if(PlayerInfo[playerid][pCop] == 0)
        {
            SetPlayerPos(playerid,playerposx, playerposy, playerposz);
        }
    }

How do I do if I want the passangers to be allowed to enter the cop vehicles?

[Dubya]

You lacked the && !ispassenger, which judges whether the player that is entering is entering as driver, or as passenger.

pawn Код:

if(IsACopVehicle(vehicleid) && !ispassenger)
    {
        new Float:playerposx, Float:playerposy, Float:playerposz;
        GetPlayerPos(playerid, playerposx, playerposy, playerposz);
        if(PlayerInfo[playerid][pCop] == 0)
        {
            SetPlayerPos(playerid,playerposx, playerposy, playerposz);
        }
    }